The Linux kernel receives many patches to the devicetree files each release. The hunk header for those patches typically show nothing, making it difficult to figure out what node is being modified without applying the patch or opening the file and seeking to the context. Let's add a builtin 'dts' pattern to git so that users can get better diff output on dts files when they use the diff=dts driver. The regex has been constructed based on the spec at devicetree.org[1] [1] https://github.com/devicetree-org/devicetree-specification/releases/latest Cc: Rob Herring <robh+dt@xxxxxxxxxx> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx> --- Sending this again after getting feedback and it getting stuck in review[1]. I'm not sure what happened with the meta question from Junio to add a way for various projects to introduce their own patterns, but I'd still prefer to have this in git proper because the kernel uses git extensively and we rely on git formatted patches in our workflow. I recently reviewed a dts change and remembered this never got accepted. Changes from v1: * Updated regex to handle anything after node names instead of requiring a '{' * Updated test for boolean relation operators * Sent out a patch to devicetree spec to document % operator [1] Feedback was in 16335abe-5e7e-fd7a-25f4-373f94e176e1@xxxxxxxxx Documentation/gitattributes.txt | 2 ++ t/t4018-diff-funcname.sh | 1 + t/t4018/dts-labels | 8 +++++++ t/t4018/dts-node-unitless | 8 +++++++ t/t4018/dts-nodes | 8 +++++++ t/t4018/dts-reference | 8 +++++++ t/t4034-diff-words.sh | 1 + t/t4034/dts/expect | 37 +++++++++++++++++++++++++++++++++ t/t4034/dts/post | 32 ++++++++++++++++++++++++++++ t/t4034/dts/pre | 32 ++++++++++++++++++++++++++++ userdiff.c | 9 ++++++++ 11 files changed, 146 insertions(+) create mode 100644 t/t4018/dts-labels create mode 100644 t/t4018/dts-node-unitless create mode 100644 t/t4018/dts-nodes create mode 100644 t/t4018/dts-reference create mode 100644 t/t4034/dts/expect create mode 100644 t/t4034/dts/post create mode 100644 t/t4034/dts/pre diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index fb1d188d440c..c5a528c667b6 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -810,6 +810,8 @@ patterns are available: - `css` suitable for cascading style sheets. +- `dts` suitable for devicetree (DTS) files. + - `fortran` suitable for source code in the Fortran language. - `fountain` suitable for Fountain documents. diff --git a/t/t4018-diff-funcname.sh b/t/t4018-diff-funcname.sh index 9261d6d3a000..6f5ef0035e92 100755 --- a/t/t4018-diff-funcname.sh +++ b/t/t4018-diff-funcname.sh @@ -31,6 +31,7 @@ diffpatterns=" cpp csharp css + dts fortran fountain golang diff --git a/t/t4018/dts-labels b/t/t4018/dts-labels new file mode 100644 index 000000000000..27cd4921cfb6 --- /dev/null +++ b/t/t4018/dts-labels @@ -0,0 +1,8 @@ +/ { + label_1: node1@ff00 { + label2: RIGHT { + vendor,some-property; + ChangeMe = <0x45-30>; + }; + }; +}; diff --git a/t/t4018/dts-node-unitless b/t/t4018/dts-node-unitless new file mode 100644 index 000000000000..c5287d91416e --- /dev/null +++ b/t/t4018/dts-node-unitless @@ -0,0 +1,8 @@ +/ { + label_1: node1 { + RIGHT { + prop-array = <1>, <4>; + ChangeMe = <0xffeedd00>; + }; + }; +}; diff --git a/t/t4018/dts-nodes b/t/t4018/dts-nodes new file mode 100644 index 000000000000..5a4334bb1645 --- /dev/null +++ b/t/t4018/dts-nodes @@ -0,0 +1,8 @@ +/ { + label_1: node1@ff00 { + RIGHT@deadf00,4000 { + #size-cells = <1>; + ChangeMe = <0xffeedd00>; + }; + }; +}; diff --git a/t/t4018/dts-reference b/t/t4018/dts-reference new file mode 100644 index 000000000000..f115d4291d25 --- /dev/null +++ b/t/t4018/dts-reference @@ -0,0 +1,8 @@ +&label_1 { + TEST = <455>; +}; + +&RIGHT { + vendor,some-property; + ChangeMe = <0x45-30>; +}; diff --git a/t/t4034-diff-words.sh b/t/t4034-diff-words.sh index 912df91226f2..9a93c2a3e0dd 100755 --- a/t/t4034-diff-words.sh +++ b/t/t4034-diff-words.sh @@ -303,6 +303,7 @@ test_language_driver bibtex test_language_driver cpp test_language_driver csharp test_language_driver css +test_language_driver dts test_language_driver fortran test_language_driver html test_language_driver java diff --git a/t/t4034/dts/expect b/t/t4034/dts/expect new file mode 100644 index 000000000000..560fc9918476 --- /dev/null +++ b/t/t4034/dts/expect @@ -0,0 +1,37 @@ +<BOLD>diff --git a/pre b/post<RESET> +<BOLD>index b6a9051..7803aee 100644<RESET> +<BOLD>--- a/pre<RESET> +<BOLD>+++ b/post<RESET> +<CYAN>@@ -1,32 +1,32 @@<RESET> +/ {<RESET> + <RED>this_handle<RESET><GREEN>HANDLE_2<RESET>: <RED>node<RESET><GREEN>new-node<RESET>@<RED>f00<RESET><GREEN>eeda<RESET> { + compatible = "<RED>mydev<RESET><GREEN>vendor,compat<RESET>"; + string-prop = <RED>start<RESET><GREEN>end<RESET>: "hello <RED>world!<RESET><GREEN>world?<RESET>" <RED>end<RESET><GREEN>start<RESET>: ; + <RED>#size-cells<RESET><GREEN>#address-cells<RESET> = <<RED>0+0<RESET><GREEN>0+40<RESET>>; + reg = <<RED>0xf00<RESET><GREEN>0xeeda<RESET>>; + prop = <<GREEN>(<RESET>1<GREEN>)<RESET>>; + prop = <<GREEN>(<RESET>-1e10<GREEN>)<RESET>>; + prop = <(!<RED>3<RESET><GREEN>1<RESET>)>; + prop = <(~<RED>3<RESET><GREEN>1<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>*<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>&<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>*<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>/<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>%<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3+4<RESET><GREEN>1+2<RESET>)>; + prop = <(<RED>3-4<RESET><GREEN>1-2<RESET>)>; + prop = /bits/ <RED>64<RESET><GREEN>32<RESET> <(<RED>3<RESET><GREEN>1<RESET><<<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>>><RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>&<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>^<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>|<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>&&<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>3<RESET><GREEN>1<RESET>||<RED>4<RESET><GREEN>2<RESET>)>; + prop = <(<RED>4?5<RESET><GREEN>1?2<RESET>:3)>; + list = <&<RED>this_handle<RESET><GREEN>HANDLE_2<RESET>>, <0 0 0 <RED>0<RESET><GREEN>1<RESET>>; + };<RESET> + + &<RED>phandle<RESET><GREEN>phandle2<RESET> { + <RED>pre-phandle<RESET><GREEN>prop_handle<RESET> = <&<RED>this_handle<RESET><GREEN>HANDLE_2<RESET>>; + };<RESET> +};<RESET> diff --git a/t/t4034/dts/post b/t/t4034/dts/post new file mode 100644 index 000000000000..7803aee28093 --- /dev/null +++ b/t/t4034/dts/post @@ -0,0 +1,32 @@ +/ { + HANDLE_2: new-node@eeda { + compatible = "vendor,compat"; + string-prop = end: "hello world?" start: ; + #address-cells = <0+40>; + reg = <0xeeda>; + prop = <(1)>; + prop = <(-1e10)>; + prop = <(!1)>; + prop = <(~1)>; + prop = <(1*2)>; + prop = <(1&2)>; + prop = <(1*2)>; + prop = <(1/2)>; + prop = <(1%2)>; + prop = <(1+2)>; + prop = <(1-2)>; + prop = /bits/ 32 <(1<<2)>; + prop = <(1>>2)>; + prop = <(1&2)>; + prop = <(1^2)>; + prop = <(1|2)>; + prop = <(1&&2)>; + prop = <(1||2)>; + prop = <(1?2:3)>; + list = <&HANDLE_2>, <0 0 0 1>; + }; + + &phandle2 { + prop_handle = <&HANDLE_2>; + }; +}; diff --git a/t/t4034/dts/pre b/t/t4034/dts/pre new file mode 100644 index 000000000000..b6a905113c22 --- /dev/null +++ b/t/t4034/dts/pre @@ -0,0 +1,32 @@ +/ { + this_handle: node@f00 { + compatible = "mydev"; + string-prop = start: "hello world!" end: ; + #size-cells = <0+0>; + reg = <0xf00>; + prop = <1>; + prop = <-1e10>; + prop = <(!3)>; + prop = <(~3)>; + prop = <(3*4)>; + prop = <(3&4)>; + prop = <(3*4)>; + prop = <(3/4)>; + prop = <(3%4)>; + prop = <(3+4)>; + prop = <(3-4)>; + prop = /bits/ 64 <(3<<4)>; + prop = <(3>>4)>; + prop = <(3&4)>; + prop = <(3^4)>; + prop = <(3|4)>; + prop = <(3&&4)>; + prop = <(3||4)>; + prop = <(4?5:3)>; + list = <&this_handle>, <0 0 0 0>; + }; + + &phandle { + pre-phandle = <&this_handle>; + }; +}; diff --git a/userdiff.c b/userdiff.c index e74a6d402255..1db5d30aaebe 100644 --- a/userdiff.c +++ b/userdiff.c @@ -23,6 +23,15 @@ IPATTERN("ada", "[a-zA-Z][a-zA-Z0-9_]*" "|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?" "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), +PATTERNS("dts", + /* Node name with optional label and unit address */ + "^[ \t]*((([a-zA-Z_][a-zA-Z0-9_]*:[ \t]*)?[a-zA-Z][a-zA-Z0-9,._+-]*(@[a-zA-Z0-9,._+-]+)?" + /* Reference */ + "|&[a-zA-Z_][a-zA-Z0-9_]*)[ \t]*[^;]*)$", + /* -- */ + /* Property names and math operators */ + "[a-zA-Z0-9,._+?#-]+" + "|[-+*/%&^|!~]|>>|<<|&&|\\|\\|"), IPATTERN("fortran", "!^([C*]|[ \t]*!)\n" "!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n" -- Sent by a computer through tubes
